Experimental study of K0L-->π+π-γ and other rare decay modes
Abstract
Using the SLAC K0L spectrometer facility, we have measured the ratio (K0L-->π+π-γ)Γ(K0L-->all) to be (6.2 +/- 2.1) × 10-5. The ratio and Dalitz-plot distribution of 24 +/- 10 events are consistent with CP conservation in this weak-electromagnetic decay. We have also set upper limits on various processes, as follows: Γ(K0L-->μ+μ-γ)Γ(K0L-->all)<=7.8×10-6, 90% C.L.; Γ(K0L-->μ+μ-π0)Γ(K0L-->all)<=5.7×10-5, 90% C.L.; Γ(K0L-->π+π-e+e-)Γ(K0L-->all)<=8.8×10-6, 90% C.L.; Γ(K0L-->π0π+/-e-/+ν)Γ(K0L-->all)<=2.2×10-3, 90% C.L.
- Publication:
-
Physical Review D
- Pub Date:
- December 1976
- DOI:
- 10.1103/PhysRevD.14.2839
- Bibcode:
- 1976PhRvD..14.2839D